RHEV 3.3 - VMs get paused due to "no storage space error"
Issue
- Guest is paused with AttributeError: 'Drive' object has no attribute 'format'
- VM has been paused due low storage space
- A guest is paused after migrating from VDSM 3.2.z (4.10.2-30.1 and earlier) to 3.3.0-3 (4.13.2-0.10)
- The guest had previously ran on host with VDSM 3.3.0-1 (4.13.2-0.6) or VDSM 3.3.0-2 (4.13.2-0.9) installed.
- Following error seen repeating in
/var/log/vdsm/vdsm.logon host.
Thread-4311::ERROR::2014-02-18 11:17:00,994::sampling::355::vm.Vm::(collect) vmId=`158d248a-ccc2-4776-891a-c60f8396eeea`::Stats function failed: <AdvancedStatsFunction _highWrite at 0x18c2730>
Traceback (most recent call last):
File "/usr/share/vdsm/sampling.py", line 351, in collect
statsFunction()
File "/usr/share/vdsm/sampling.py", line 226, in __call__
retValue = self._function(*args, **kwargs)
File "/usr/share/vdsm/vm.py", line 529, in _highWrite
self._vm.extendDrivesIfNeeded()
File "/usr/share/vdsm/vm.py", line 2313, in extendDrivesIfNeeded
if not drive.blockDev or drive.format != 'cow':
AttributeError: 'Drive' object has no attribute 'format'
Environment
- Red Hat Enterprise Virtualization 3.2
- Red Hat Enterprise Virtualization 3.3
Both of the above including the below installed on hosts.- VDSM 3.3.0-1 (4.13.2-0.6)
- VDSM 3.3.0-2 (4.13.2-0.9)
- VDSM 3.3.0-3 (4.13.2-0.10)
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